Features: 100% and high quality This tension meter apply to measure mesh tension.very dependable and accuracy. it has correction zero, it's not allowed to disassemble or re-fix it. Usage: Tensile Testing Machine Printing: Silk Screen Priting. High Precision Silk Screen Tension Meter Newton Tension Meter 7-36N. Measuring range:7~36N/cm Measuring Value :N/cm Error/Deviation: +/- 1 Newton scope. Testing the mesh tension of N/cm. Package Includes: 1x Tension Meter Specifications: Material: Carbide Size: 15x12cm/ 5.9x4.7 in Before use, please put the strain gauge on the glass and turn the knob to return the pointer to zero. Screen printing film when measuring, screen printing tension is displayed when the pointer stops. Voltmeter is a precision instrument, it is strictly prohibited to drop, touch, be careful when using. The strain gauge calibration is accurate, do not allow self-disassembly. Do not touch the bottom of the contact. put the machine upright when not in use. Newtonian voltage is the value of the contactor, the error is +0.5N. The second circle indicates the values measured during the measurement. note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.